Method of coating a part with a layer of ligneous material, and part coated with such a layer

Abstract

A method for coating a component with a thin layer of ligneous material, includes selecting a sheet of coating constituted at least partially by a thin layer of ligneous material intended to be visible in the finished component, coating the surface of the sheet with a thin layer of a transparent composition containing a synthetic resin, and fixing the coated sheet to the surface of the component. In the fixing step, the layer of composition deposited on the surface of the sheet has a resilience which is at least 5% greater, and preferably at least 10% greater, than that of the thin layer of ligneous material in all directions, and the composition layer is transparent so that the layer of ligneous material is visible through the layer of composition. A step of engraving the surface of transparent composition opposite the layer of ligneous material is advantageous after coating.

1 . Method for coating a surface of a component with a thin layer of ligneous material, of the type comprising:
 selecting a sheet of coating constituted at least partially by a thin layer of ligneous material which is intended to be visible in the finished component,   coating the surface of the sheet with a thin layer of a composition which contains a synthetic resin, and   fixing the coated sheet to the surface of the component,   
     characterised in that, 
     in the step of fixing the coated sheet, the layer of composition deposited on the surface of the sheet has a resilience at least 5% greater, and preferably at least 10% greater, than that of the thin layer of ligneous material in all directions, and the composition layer is transparent so that the layer of ligneous material is visible through the composition layer. 
   
   
       2 . Method according to  claim 1 , characterised in that it comprises, after the step of coating the surface of the sheet with a thin layer of a composition containing a synthetic resin, a step of at least partially baking the composition. 
   
   
       3 . Method according to  claim 1 , characterised in that the surface of the component is not planar. 
   
   
       4 . Method according to  claim 1 , characterised in that the step of fixing the coated sheet to the surface of the component comprises a step of pressing the coated sheet against the surface of the component. 
   
   
       5 . Method according to  claim 1 , characterised in that the step of fixing the coated sheet to the surface of the component comprises a step of arranging the coated sheet in a mould with the layer of transparent composition against a surface of the mould and a step of injecting in the mould, at the side of the thin layer of ligneous material, a plastics material which is intended to constitute the body of the component. 
   
   
       6 . Method according to  claim 1 , characterised in that the step of selecting a coating sheet comprises selecting a sheet which may be curved with a radius of 15 mm in all directions without cracking of the ligneous material. 
   
   
       7 . Method according to  claim 1 , characterised in that the coating step is selected from a coating step which is carried out in the flat state on a layer of ligneous material and a coating step which is carried out when the layer of ligneous material moves over a cylinder. 
   
   
       8 . Method according to  claim 1 , characterised in that the coating step is selected from a coating step which is carried out by means of roller application, a coating step which is carried out by means of projection and a curtain coating step. 
   
   
       9 . Method according to  claim 1 , characterised in that it comprises, after coating the surface of the sheet with a thin layer of a composition which contains a synthetic resin, a step of engraving the surface of transparent composition opposite the layer of ligneous material. 
   
   
       10 . Component having a surface which is coated with a layer of ligneous material, characterised in that the outer surface of the layer of ligneous material is covered with a layer of a transparent composition which has a resilience which is at least 5% greater, and preferably at least 10% greater, than that of the thin layer of ligneous material in all directions. 
   
   
       11 . Method according to  claim 2 , characterised in that the surface of the component is not planar.